Solubility of hydrogen in sodium chloride brine at high pressures

We report measurements of the solubility hydrogen in pure water and sodium chloride brine molality 2.5 mol/kg at temperatures between 323.15 K 423.15 pressures up to about 40 MPa. The estimated expanded relative uncertainty given temperature pressure is 3%, with a coverage factor 2. new results, together data from literature for brine, are used construct simple model predict brines as function temperature, salt molality.